, federal or state law enforcement. that being said, they are human. mistakes sometimes are made. of course, it raises questions when you hear that the government of russia alerted us about this man and he was under questioning, was investigated and nothing happened. if there are questions that can lead to improving the protocol, to improving the process, to maybe catching a bad guy before he does heinous terrorist acts, i say, let's go through the process. we're all going to learn from it. >> we've been talking about the weapons that these guys had. you know the gun control debate is coming into this. l.z., the centers failed to advance gun control that would have ics panded background checks and closed the gun show loophole. on friday, some gun rights activists said that the boston lockdown with residents warned to stay inside and not to answer their doors to anyone but police, they said it was a perfect justification for owning a gun. are we done with new gun control efforts and does this story, what's happening here